Window-sash lock.



0. C. HENCKEL.

WINDOW SASH LOCK.

APPLICATION FILED SEPT. 2. 1915.

1, 182,481 I Patented May 9, 1916.

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OLUF C. 'HENCKEL, OF BROOKLYN, NEW-YORK.

WINDOW-SASH Loon.

Application filed September 2, 1915.

To all whom it may concern Be it known that I, OLUr C. IIENCK.EL, a citizen of the United States, residing at Brooklyn, in the county of Kings, State of New York. have invented certain new and useful Improvements in Window Sash Locks; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

The present invention is directed to improvements in window sash locks,and has for its object toprovide a device of this character so constructed that the same can be easily and quickly applied to any form of sash.

A further object of the invention is to pro vide a sash lockconstructed in such a manner that the upper and lower sashes can be positively locked in their closed position or in a partially open position.

A still further object of the invention is to provide a sash lock whichis extremely simple in construction, durable, ei'licient in operation and one which can be manufac tured at a very small cost.

With these and other objects in view, this invention resides in the novel features of construction. formation. combination and arrangement of parts to be hereinafter more fully described, claimed and illustrated in the accompanying drawing, in which Figure 1 is a front elevation of the device showing it in place. Fig. 2 is. a side elevati on of the same. Fig. 3 is a top plan view of the device. Fig. l is a vertical central sectional view through the device.

Referring to the drawing 1 indicates the lower sash. and 2 the upper sash, the side rail of which is provided with a plurality of spaced vertically alined sockets 3,the purpose of which will appear later.

The lock consistsof a base plate 4. the ends of which terminate in upstanding flanges 5, said flanges being provided with alined screw threaded openings 6. and in which is engaged the threaded rod 7, said rod having its inner end provided with a finger-piece 8, whereby said rod may be rotated. when desired. The inner end of Specification of Letterslatent.

Patented May 9, 1916.

Serial No. 48,711.

impinge against the adjacent side rail of the upper sash. The base a is provided on its upper surface with a longitudinal groove 10, in which is engaged the lower end of the head 11. Thehead 11 is provided with upper and lower bores 12 and 13, respee- 11 so that when the rod is rotated in one direction said head will be moved inwardly. The inner end of the rod 15 has carried thereby a pin 19. which is adapted to engage the forward edge of the head 11 so that when the rod is rotated in a reverse direction. said head will be moved outwardly. To facilitate the rotation of the rod 15, the same is provided at its outer end with a finger-piece 20. The head is provided with a finger 21. which is adapted to engage a selected socket 3 in the side rail of the upper sash, thus locking the sashes against relative movement. The inner flange 5 terminates in a depending plate 22, which is adapted to rest flush against the inner surface of the siderail of the lower sash, and at which time. the base 1 rests upon the upper end of said rail. Suitable securing devices are passed through the base 4: and the plate 22 thereby firmly holding the lock in place.

In operation. the sashes are arranged in either closed or partially closed positions, after which the rod 15 is rotated so as to move the head 1]. outwardly, whereupon the finger 21 will engage a selected socket, thereby firmly locking the sashes together. The rod 7 is then rotated until the disk 9 thereof is impinged firmly against the adjacent side rail of the upper sash, and in conjunction with the finger 21, serves to firmly lock the sashes.

lVhat is claimed is:-

A sash lock comprising a base adapted to be secured to the lower sash. said base having upstanding flanges at its ends. a head ;slidablv associated with the base and havthe rod is provided with a disk 9 adapted toi'iing upper and lower bores formed therein,

a threaded rod supported by the flanges and and named rod is rotated, and means for engaged in the upper bore, said rod having rotating said rod.

:1 sash engaging disk carried by its outer In testimony whereof, I affix my signaend, a second rod threaded in one of the ture; in the presence of two Witnesses. flanges and having an unthreaded portion OLUF C. HENCKEL. for rotatably engagingthe lowermost bore VVitnes'ses: I

of the head, a finger carried by the head CARL JOHNSON,

for engaging the upper sash When the sec- GEO. W. COOPER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents Washington, D. G. 

